2 use std::cell::RefCell;
4 use std::string::String;
6 #[derive(PartialEq, Debug)]
13 assert_eq!(*Rc::new(5), 5);
14 assert_eq!(***Rc::new(Box::new(Box::new(5))), 5);
15 assert_eq!(*Rc::new(Point {x: 2, y: 4}), Point {x: 2, y: 4});
17 let i = Rc::new(RefCell::new(2));
18 let i_value = *(*i).borrow();
19 *(*i).borrow_mut() = 5;
20 assert_eq!((i_value, *(*i).borrow()), (2, 5));
22 let s = Rc::new("foo".to_string());
23 assert_eq!(*s, "foo".to_string());
24 assert_eq!((*s), "foo");
26 let mut_s = Rc::new(RefCell::new(String::from("foo")));
27 (*(*mut_s).borrow_mut()).push_str("bar");
28 // assert_eq! would panic here because it stores the LHS and RHS in two locals.
29 assert_eq!((*(*mut_s).borrow()), "foobar");
30 assert_eq!((*(*mut_s).borrow_mut()), "foobar");
32 let p = Rc::new(RefCell::new(Point {x: 1, y: 2}));
33 (*(*p).borrow_mut()).x = 3;
34 (*(*p).borrow_mut()).y += 3;
35 assert_eq!(*(*p).borrow(), Point {x: 3, y: 5});
37 let v = Rc::new(RefCell::new(vec![1, 2, 3]));
38 (*(*v).borrow_mut())[0] = 3;
39 (*(*v).borrow_mut())[1] += 3;
40 assert_eq!(((*(*v).borrow())[0],
42 (*(*v).borrow())[2]), (3, 5, 3));